添加SmartEdit组件时AttributeDescriptorModel.getLocalized()空指针异常

问题详情 #

添加SmartEdit组件过程中，调用AttributeDescriptorModel.getLocalized()时出现NullPointerException，报错提示该方法返回null，导致无法调用booleanValue()。尝试用Groovy脚本查询存在问题的模型，但未找到结果，且生产环境无法调试。

原排查脚本 #

def SCRIPT_QUERY = "select {pk} from {attributeDescriptor}"
def attributeDescriptors = flexibleSearchService.search(SCRIPT_QUERY).getResult()println ("groovy start-----------")for (attributeDescriptor in attributeDescriptors) {if(attributeDescriptor.getLocalized()==null){println(attributeDescriptor.getName())}}println ("groovy end-----------")

报错日志 #

loggerName":"de.hybris.platform.webservicescommons.resolver.AbstractRestHandlerExceptionResolver","message":"java.lang.NullPointerException:

Cannot invoke "java.lang.Boolean.booleanValue()" because the return value of "de.hybris.platform.core.model.type.AttributeDescriptorModel.getLocalized()" is null

at de.hybris.platform.cms2.common.predicates.IsCollectionAttributePredicate.test(IsCollectionAttributePredicate.java:21)

at de.hybris.platform.cms2.common.predicates.IsCollectionAttributePredicate.test(IsCollectionAttributePredicate.java:17)

at de.hybris.platform.cmsfacades.types.populator.DropdownComponentTypeAttributePopulator.populate(DropdownComponentTypeAttributePopulator.java:38)

at de.hybris.platform.cmsfacades.types.populator.DropdownComponentTypeAttributePopulator.populate(DropdownComponentTypeAttributePopulator.java:25)

at de.hybris.platform.cmsfacades.types.converter.ComponentTypeStructureConverter.lambda$convertAttribute$5(ComponentTypeStructureConverter.java:183)

at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) at de.hybris.platform.cmsfacades.types.converter.ComponentTypeStructureConverter.convertAttribute(ComponentTypeStructureConverter.java:183)

排查与解决办法 #

1. 缩小Groovy查询范围 #

原脚本遍历所有AttributeDescriptor，范围太广。问题出在CMS组件相关属性上，调整脚本只查询这类属性：

def SCRIPT_QUERY = "SELECT {ad.pk} FROM {AttributeDescriptor AS ad JOIN Type AS t ON {ad.enclosingType} = {t.pk}} WHERE {t.code} LIKE 'CMS%Component'"
def attributeDescriptors = flexibleSearchService.search(SCRIPT_QUERY).getResult()
println("groovy start-----------")
for (attributeDescriptor in attributeDescriptors) {
    def localized = attributeDescriptor.getLocalized()
    if (localized == null) {
        println("属性名: ${attributeDescriptor.getName()}, 所属类型: ${attributeDescriptor.getEnclosingType().getCode()}, PK: ${attributeDescriptor.getPk()}")
    }
}
println("groovy end-----------")

2. 直接检查数据库 #

登录数据库执行SQL，找localized字段为null的记录：

SELECT pk, name, enclosingtypepk FROM attributedescriptor WHERE localized IS NULL;

找到对应记录后，通过Hybris后台Type System模块，找到该属性所属的CMS组件类型，修复Localized配置（设为true或false）。

3. 临时代码修复（无法改数据库时） #

扩展原IsCollectionAttributePredicate类，增加null判断：

public class CustomIsCollectionAttributePredicate implements Predicate<AttributeDescriptorModel> {
    @Override
    public boolean test(AttributeDescriptorModel attributeDescriptorModel) {
        Boolean localized = attributeDescriptorModel.getLocalized();
        return attributeDescriptorModel.isCollection() && (localized == null ? false : !localized.booleanValue());
    }
}

通过Spring配置替换原bean，避免NPE触发。

4. 检查自定义扩展配置 #

排查项目中自定义的CMS组件扩展，确认所有属性都正确配置了localized属性，避免生成的AttributeDescriptorModel中该字段为null。

内容的提问来源于stack exchange，提问作者Naved Ali